Features CDKN2A Melanoma (N=17) Non CDKN2A Melanoma (N=168) P
Phototype     0.919
-I-II 6 (42.9%) 58 (44.3%)  
-III-IV 8 (57.1%) 73 (55.7%)  
Hair colour     0.555
-brown/black 11 (68.8%) 97 (75.2%)  
-blond/red 5 (31.3%) 32 (24.8%)  
Eye colour     0.833
-dark 9 (60%) 81 (62.8%)  
-fair 6(40%) 48 (37.2%)  
Nevi count     0.055
-<50 5 (35.7%) 65 (62.5%)  
->50 9 (64.3%) 39 (37.5%)  
Elastosis     0.569
-not present 14 (82.4%) 125 (74.4%)  
-present 3 (17.6%) 43 (25.6%)  
Type of cells     0
-epithelioid 10 (58.5%) 133 (78.7%)  
-sarcomatoid 1 (5.9%) 9 (5.3%)  
-big round 6 (35.3%) 8 (4.7%)  
-fusocellular 0 (0%) 13 (7.7%)  
-dendritic 0 (0%) 6 (3.6%)  
TIL     0.441
-not present 4 (23.5%) 22 (13%)  
-mild 11 (64.7%) 131 (77.5%)  
-severe 2 (11.8%) 16 (9.5%)  
Regression     0.742
-present 2 (11.8%) 29 (17.2%)  
-not present 15 (88.2%) 140 (82.8%)  
Mytoses     0.242
-1 13 (76.5%) 105 (62.1%)  
->1 4 (23.5%) 64 (37.9%)  
Pagetoid invasion     0.34
-not present 1 (5.9%) 2 (1.2%)  
-mild 5 (29.4%) 54 (32%)  
-severe 11 (64.7%) 113 (66.9%)  
Nests     0.743
-present 14 (87.5%) 134 (79.3%)  
-not present 2 (12.5%) 35 (20.7%)  
Lentiginous hyperplasia     0.945
-present      
-not present 8 (47.1%) 81 (47.9%)  
  9 (52.9%) 88 (52.1%)  
Cellular atypia     0.408
-mild 2 (11.8%) 42 (24.9%)  
-moderate 9 (52.9%) 85 (50.3%)  
-severe 6 (35.3%) 42 (24.9%)  
Nuclear Survivin     1
-positive 4 (25%) 38 (24.7%)  
-negative 12 (75%) 116 (75.3%)  
Cytoplasmic Survivin     0.052
-positive 15 (93.8%) 112 (72.7%)  
-negative 1 (6.3%) 42 (27.3%)  
Table 6: Phenotypic characteristics and histopathological features Carriers of CDKN2A mutation versus non-carriers